Note 10 - Stock-based Compensation (Tables)

12 Months Ended

Aug. 31, 2021

Notes Tables

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	Fiscal Year 2021			Fiscal Year 2020
Dividend yield		1.65	%		2.41	%
Expected volatility		45.4	%		45.2	%
Expected life of option (in years)		10			10
Weighted average risk-free interest rate		0.77	%		1.40	%

Share-based Payment Arrangement, Option, Activity [Table Text Block]

	Number of Shares (#)			Weighted Average Exercise Price		Aggregate Intrinsic Value
Outstanding at August 31, 2019		839,173		$	9.13
Options granted		300,770			10.87
Options exercised		(11,975	)		5.13
Options terminated		—			—
Outstanding at August 31, 2020		1,127,968		$	9.63
Options granted		419,874			8.24
Options exercised		(77,645	)		8.18
Options terminated		(43,546	)		9.63
Outstanding at August 31, 2021		1,426,651		$	9.30	$	10,514,418
Exercisable at August 31, 2021		1,022,802		$	9.72	$	7,108,474